Leg : 74 Depth to Top of Core(m): 573.60 Piece: 5C
Hole: 525A Top/Bottom Interval(mm): 960/1010
Core: 53 Sample Depth: 576.09
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 54.64 Al2O3: 21.89 Fe2O3(tot):
FeO(tot): 4.51 Fe2O3: FeO :
MgO : 0.89 CaO : 8.40 Na2O : 4.33
K2O : 1.18 TiO2 : 2.86 MnO : 0.03
P2O5 : 0.20 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 98.93 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 573.60 Piece: 5C
Hole: 525A Top/Bottom Interval(mm): 960/1010
Core: 53 Sample Depth: 576.09
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 3.48 FeO : 1.38
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.01
H2O- : 3.13 CO2 : 1.25 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 573.60 Piece: 7D
Hole: 525A Top/Bottom Interval(mm): 1070/1120
Core: 53 Sample Depth: 577.70
Sect: 3 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 51.34 Al2O3: 21.30 Fe2O3(tot):
FeO(tot): 6.14 Fe2O3: FeO :
MgO : 1.10 CaO : 10.55 Na2O : 4.20
K2O : 0.97 TiO2 : 2.68 MnO : 0.08
P2O5 : 0.16 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 98.52 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 573.60 Piece: 7D
Hole: 525A Top/Bottom Interval(mm): 1070/1120
Core: 53 Sample Depth: 577.70
Sect: 3 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 3.63 FeO : 2.87
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.13
H2O- : 2.29 CO2 : 4.03 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 583.10 Piece: 3E
Hole: 525A Top/Bottom Interval(mm): 500/ 560
Core: 54 Sample Depth: 585.13
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 55.34 Al2O3: 21.37 Fe2O3(tot):
FeO(tot): 4.36 Fe2O3: FeO :
MgO : 1.13 CaO : 7.31 Na2O : 4.10
K2O : 1.54 TiO2 : 2.82 MnO : 0.01
P2O5 : 0.25 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 98.23 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 583.10 Piece: 3E
Hole: 525A Top/Bottom Interval(mm): 500/ 560
Core: 54 Sample Depth: 585.13
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 3.68 FeO : 1.05
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.28
H2O- : 2.67 CO2 : 0.24 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 592.60 Piece: 3B
Hole: 525A Top/Bottom Interval(mm): 350/ 400
Core: 55 Sample Depth: 594.48
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 53.91 Al2O3: 22.66 Fe2O3(tot):
FeO(tot): 4.55 Fe2O3: FeO :
MgO : 1.51 CaO : 8.03 Na2O : 3.65
K2O : 0.53 TiO2 : 3.09 MnO : 0.01
P2O5 : 0.18 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 98.12 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 592.60 Piece: 3B
Hole: 525A Top/Bottom Interval(mm): 350/ 400
Core: 55 Sample Depth: 594.48
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 4.51 FeO : 0.49
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 2.22
H2O- : 6.30 CO2 : 0.27 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 602.10 Piece: 2C
Hole: 525A Top/Bottom Interval(mm): 630/ 670
Core: 56 Sample Depth: 602.75
Sect: 1 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 50.43 Al2O3: 16.39 Fe2O3(tot):
FeO(tot): 9.56 Fe2O3: FeO :
MgO : 4.47 CaO : 10.62 Na2O : 3.09
K2O : 0.48 TiO2 : 2.97 MnO : 0.10
P2O5 : 0.25 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 98.36 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 602.10 Piece: 2C
Hole: 525A Top/Bottom Interval(mm): 630/ 670
Core: 56 Sample Depth: 602.75
Sect: 1 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 6.41 FeO : 3.79
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.57
H2O- : 3.26 CO2 : 1.88 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 602.10 Piece: 1B
Hole: 525A Top/Bottom Interval(mm): 50/ 110
Core: 56 Sample Depth: 606.68
Sect: 4 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 51.21 Al2O3: 14.71 Fe2O3(tot):
FeO(tot): 11.43 Fe2O3: FeO :
MgO : 5.18 CaO : 9.90 Na2O : 2.75
K2O : 1.01 TiO2 : 2.46 MnO : 0.13
P2O5 : 0.29 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 99.07 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 602.10 Piece: 1B
Hole: 525A Top/Bottom Interval(mm): 50/ 110
Core: 56 Sample Depth: 606.68
Sect: 4 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 5.89 FeO : 6.13
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.12
H2O- : 2.09 CO2 : 2.25 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 602.10 Piece: 1S
Hole: 525A Top/Bottom Interval(mm): 900/ 940
Core: 56 Sample Depth: 609.02
Sect: 5 Analyst Name: Richardson, S.H.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Extensive IGNEOUS APHYRIC BASALT
SiO2 : 49.53 Al2O3: 14.02 Fe2O3(tot): 12.17
FeO(tot): Fe2O3: FeO :
MgO : 5.88 CaO : 9.75 Na2O : 2.84
K2O : 0.56 TiO2 : 2.39 MnO : 0.12
P2O5 : 0.32 LOI : 0.85 H2O+ :
H2O- : 1.68 CO2 : SO3 :
S : 0.0206 Total: 100.11 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Total water not directly determined.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Shipboard analysis.
Laboratory analysis.
Data source is Hole Summary Book.
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 611.60 Piece: 1U
Hole: 525A Top/Bottom Interval(mm): 1190/1240
Core: 57 Sample Depth: 612.82
Sect: 1 Analyst Name: Richardson, S.H.
Analytical Method(s):
Isotope dilution Isotope dilution Isotope dilution
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: FeO :
MgO : CaO : Na2O :
K2O : 0.47 TiO2 : MnO :
P2O5 : LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: Magnesium#:
Comments:
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Hole Summary Book.
Results are averages for multiple analyses of the specimen.
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Magnesium number is atomic ration Mg/(Mg+Fe++), where Fe is total iron.
Leg : 74 Depth to Top of Core(m): 611.60 Piece: 1S
Hole: 525A Top/Bottom Interval(mm): 1360/1400
Core: 57 Sample Depth: 617.48
Sect: 4 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 50.78 Al2O3: 16.23 Fe2O3(tot):
FeO(tot): 10.83 Fe2O3: FeO :
MgO : 4.52 CaO : 9.47 Na2O : 3.26
K2O : 1.15 TiO2 : 2.76 MnO : 0.11
P2O5 : 0.30 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 99.41 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 611.60 Piece: 1S
Hole: 525A Top/Bottom Interval(mm): 1360/1400
Core: 57 Sample Depth: 617.48
Sect: 4 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 6.43 FeO : 5.04
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.15
H2O- : 2.48 CO2 : 1.68 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 611.60 Piece: 1C
Hole: 525A Top/Bottom Interval(mm): 200/ 250
Core: 57 Sample Depth: 617.83
Sect: 5 Analyst Name: Richardson, S.H.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 49.55 Al2O3: 15.48 Fe2O3(tot): 10.97
FeO(tot): Fe2O3: FeO :
MgO : 4.66 CaO : 8.80 Na2O : 3.19
K2O : 1.10 TiO2 : 2.47 MnO : 0.10
P2O5 : 0.33 LOI : 1.75 H2O+ :
H2O- : 1.50 CO2 : SO3 :
S : 0.0356 Total: 99.90 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Total water not directly determined.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Shipboard analysis.
Laboratory analysis.
Data source is Hole Summary Book.
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 621.10 Piece: 4A
Hole: 525A Top/Bottom Interval(mm): 680/ 720
Core: 58 Sample Depth: 626.30
Sect: 4 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 50.57 Al2O3: 16.56 Fe2O3(tot):
FeO(tot): 11.74 Fe2O3: FeO :
MgO : 4.38 CaO : 9.12 Na2O : 3.13
K2O : 0.64 TiO2 : 2.96 MnO : 0.11
P2O5 : 0.31 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 99.52 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 621.10 Piece: 4A
Hole: 525A Top/Bottom Interval(mm): 680/ 720
Core: 58 Sample Depth: 626.30
Sect: 4 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 7.01 FeO : 5.43
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.59
H2O- : 3.22 CO2 : 2.71 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 621.10 Piece: 6C
Hole: 525A Top/Bottom Interval(mm): 1390/1440
Core: 58 Sample Depth: 627.02
Sect: 4 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 51.37 Al2O3: 15.91 Fe2O3(tot):
FeO(tot): 10.89 Fe2O3: FeO :
MgO : 5.15 CaO : 9.47 Na2O : 3.01
K2O : 0.56 TiO2 : 2.92 MnO : 0.12
P2O5 : 0.28 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 99.68 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 621.10 Piece: 6C
Hole: 525A Top/Bottom Interval(mm): 1390/1440
Core: 58 Sample Depth: 627.02
Sect: 4 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 6.62 FeO : 4.93
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.54
H2O- : 2.81 CO2 : 0.59 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 630.60 Piece: 1C
Hole: 525A Top/Bottom Interval(mm): 910/ 950
Core: 59 Sample Depth: 631.53
Sect: 1 Analyst Name: Richardson, S.H.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 50.31 Al2O3: 15.23 Fe2O3(tot): 10.14
FeO(tot): Fe2O3: FeO :
MgO : 4.89 CaO : 8.86 Na2O : 3.16
K2O : 0.52 TiO2 : 2.71 MnO : 0.09
P2O5 : 0.36 LOI : 1.91 H2O+ :
H2O- : 2.04 CO2 : SO3 :
S : 0.0891 Total: 100.22 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Total water not directly determined.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Shipboard analysis.
Laboratory analysis.
Data source is Hole Summary Book.
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 630.60 Piece: 1U
Hole: 525A Top/Bottom Interval(mm): 1190/1240
Core: 59 Sample Depth: 631.82
Sect: 1 Analyst Name: Richardson, S.H.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 48.80 Al2O3: 14.34 Fe2O3(tot): 12.47
FeO(tot): Fe2O3: FeO :
MgO : 5.65 CaO : 9.78 Na2O : 2.93
K2O : 0.46 TiO2 : 2.45 MnO : 0.12
P2O5 : 0.31 LOI : 0.91 H2O+ :
H2O- : 1.88 CO2 : SO3 :
S : 0.0306 Total: 100.11 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Total water not directly determined.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Shipboard analysis.
Laboratory analysis.
Data source is Hole Summary Book.
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 630.60 Piece: 1G
Hole: 525A Top/Bottom Interval(mm): 350/ 390
Core: 59 Sample Depth: 635.47
Sect: 4 Analyst Name: Richardson, S.H.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 50.20 Al2O3: 13.95 Fe2O3(tot): 12.92
FeO(tot): Fe2O3: FeO :
MgO : 5.33 CaO : 9.49 Na2O : 2.49
K2O : 1.03 TiO2 : 2.48 MnO : 0.19
P2O5 : 0.31 LOI : 0.90 H2O+ :
H2O- : 0.51 CO2 : SO3 :
S : 0.1570 Total: 99.82 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Total water not directly determined.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Shipboard analysis.
Laboratory analysis.
Data source is Hole Summary Book.
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 630.60 Piece: 1G
Hole: 525A Top/Bottom Interval(mm): 350/ 390
Core: 59 Sample Depth: 635.47
Sect: 4 Analyst Name: Richardson, S.H.
Analytical Method(s):
Isotope dilution Isotope dilution Isotope dilution
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: FeO :
MgO : CaO : Na2O :
K2O : 1.05 TiO2 : MnO :
P2O5 : LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: Magnesium#:
Comments:
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Hole Summary Book.
Results are averages for multiple analyses of the specimen.
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Magnesium number is atomic ration Mg/(Mg+Fe++), where Fe is total iron.
Leg : 74 Depth to Top of Core(m): 630.60 Piece: 1G
Hole: 525A Top/Bottom Interval(mm): 350/ 390
Core: 59 Sample Depth: 635.47
Sect: 4 Analyst Name: Richardson, S.H.
Analytical Method(s):
Isotope dilution Isotope dilution Isotope dilution
Alteration Rock type Rock name
Slight IGNEOUS GLASS
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: FeO :
MgO : CaO : Na2O :
K2O : 1.08 TiO2 : MnO :
P2O5 : LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: Magnesium#:
Comments:
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Hole Summary Book.
Results are averages for multiple analyses of the specimen.
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Magnesium number is atomic ration Mg/(Mg+Fe++), where Fe is total iron.
Leg : 74 Depth to Top of Core(m): 630.60 Piece: 1F
Hole: 525A Top/Bottom Interval(mm): 370/ 410
Core: 59 Sample Depth: 638.49
Sect: 6 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 5.87 FeO : 4.14
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.33
H2O- : 2.35 CO2 : 0.47 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 630.60 Piece: 1F
Hole: 525A Top/Bottom Interval(mm): 370/ 410
Core: 59 Sample Depth: 638.49
Sect: 6 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC BASALT
SiO2 : 52.32 Al2O3: 16.68 Fe2O3(tot):
FeO(tot): 9.42 Fe2O3: FeO :
MgO : 3.99 CaO : 8.82 Na2O : 3.40
K2O : 0.92 TiO2 : 3.11 MnO : 0.10
P2O5 : 0.32 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 99.08 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 640.10 Piece: 1C
Hole: 525A Top/Bottom Interval(mm): 140/ 170
Core: 60 Sample Depth: 646.26
Sect: 5 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : 52.17 Al2O3: 18.22 Fe2O3(tot):
FeO(tot): 10.72 Fe2O3: FeO :
MgO : 3.05 CaO : 6.63 Na2O : 3.51
K2O : 0.78 TiO2 : 3.26 MnO : 0.07
P2O5 : 0.35 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 98.76 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 640.10 Piece: 1C
Hole: 525A Top/Bottom Interval(mm): 140/ 170
Core: 60 Sample Depth: 646.26
Sect: 5 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Moderate IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 7.86 FeO : 3.65
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 2.12
H2O- : 4.88 CO2 : 0.88 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 649.60 Piece: 5E
Hole: 525A Top/Bottom Interval(mm): 1130/1180
Core: 61 Sample Depth: 652.26
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC TO PLAG SPARSELY PHRYRIC BASALT
SiO2 : 52.10 Al2O3: 15.54 Fe2O3(tot):
FeO(tot): 12.67 Fe2O3: FeO :
MgO : 4.63 CaO : 6.04 Na2O : 3.06
K2O : 1.59 TiO2 : 2.92 MnO : 0.10
P2O5 : 0.59 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 99.24 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 649.60 Piece: 5E
Hole: 525A Top/Bottom Interval(mm): 1130/1180
Core: 61 Sample Depth: 652.26
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC TO PLAG SPARSELY PHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 9.37 FeO : 4.24
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.98
H2O- : 4.16 CO2 : 0.11 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 668.60 Piece: 4B
Hole: 525A Top/Bottom Interval(mm): 860/ 910
Core: 63 Sample Depth: 669.49
Sect: 1 Analyst Name: Richardson, S.H.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC TO PLAG SPARSELY PHYRIC BASALT
SiO2 : 52.37 Al2O3: 16.04 Fe2O3(tot): 9.53
FeO(tot): Fe2O3: FeO :
MgO : 3.74 CaO : 7.02 Na2O : 3.85
K2O : 1.81 TiO2 : 3.01 MnO : 0.11
P2O5 : 0.52 LOI : 0.67 H2O+ :
H2O- : 0.98 CO2 : SO3 :
S : 0.0268 Total: 99.67 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Total water not directly determined.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Shipboard analysis.
Laboratory analysis.
Data source is Hole Summary Book.
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 668.60 Piece: 4B
Hole: 525A Top/Bottom Interval(mm): 860/ 910
Core: 63 Sample Depth: 669.49
Sect: 1 Analyst Name: Richardson, S.H.
Analytical Method(s):
Isotope dilution Isotope dilution Isotope dilution
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: FeO :
MgO : CaO : Na2O :
K2O : 1.89 TiO2 : MnO :
P2O5 : LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: Magnesium#:
Comments:
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Hole Summary Book.
Results are averages for multiple analyses of the specimen.
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Magnesium number is atomic ration Mg/(Mg+Fe++), where Fe is total iron.
Leg : 74 Depth to Top of Core(m): 668.60 Piece: 2C
Hole: 525A Top/Bottom Interval(mm): 550/ 590
Core: 63 Sample Depth: 670.67
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC TO PLAG SPARSELY PHRYRIC BASALT
SiO2 : 51.06 Al2O3: 15.54 Fe2O3(tot):
FeO(tot): 11.61 Fe2O3: FeO :
MgO : 5.42 CaO : 7.93 Na2O : 2.96
K2O : 0.88 TiO2 : 3.19 MnO : 0.12
P2O5 : 0.45 LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: 99.16 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses in table are on a volatile-free basis.
Total water not directly determined.
H2O not partitioned.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 668.60 Piece: 2C
Hole: 525A Top/Bottom Interval(mm): 550/ 590
Core: 63 Sample Depth: 670.67
Sect: 2 Analyst Name: Thompson, G.
Analytical Method(s):
Wet chemical Wet chemical Wet chemical
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC TO PLAG SPARSELY PHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: 7.21 FeO : 5.17
MgO : CaO : Na2O :
K2O : TiO2 : MnO :
P2O5 : LOI : H2O+ : 1.50
H2O- : 3.15 CO2 : 0.19 SO3 :
S : Total: Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Essential oxides quoted to .01
Values for iron partitioning calculated.
Laboratory analysis.
Data source is Initial Reports.
Sample (or sample split) was analyzed more than once, e.g., both onboard
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Leg : 74 Depth to Top of Core(m): 668.60 Piece: 1D
Hole: 525A Top/Bottom Interval(mm): 630/ 680
Core: 63 Sample Depth: 670.76
Sect: 2 Analyst Name: Richardson, S.H.
Analytical Method(s):
X-Ray fluorescence X-Ray fluorescence X-Ray fluorescence
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC TO PLAG SPARSELY PHYRIC BASALT
SiO2 : 51.10 Al2O3: 15.46 Fe2O3(tot): 11.01
FeO(tot): Fe2O3: FeO :
MgO : 4.91 CaO : 7.00 Na2O : 3.55
K2O : 1.38 TiO2 : 2.93 MnO : 0.10
P2O5 : 0.50 LOI : 1.14 H2O+ :
H2O- : 1.22 CO2 : SO3 :
S : 0.0283 Total: 100.30 Magnesium#:
Comments:
Analysis NOT normalized to 100 1n source.
Analyses are NOT on a volatile-free basis.
Total water not directly determined.
Essential oxides quoted to .01
Fe oxide partitions not specified or analyzed.
Shipboard analysis.
Laboratory analysis.
Data source is Hole Summary Book.
ship and at one or more shore laboratories or by different techniques.
Leg : 74 Depth to Top of Core(m): 668.60 Piece: 2D
Hole: 525A Top/Bottom Interval(mm): 630/ 680
Core: 63 Sample Depth: 670.76
Sect: 2 Analyst Name: Richardson, S.H.
Analytical Method(s):
Isotope dilution Isotope dilution Isotope dilution
Alteration Rock type Rock name
Slight IGNEOUS APHYRIC BASALT
SiO2 : Al2O3: Fe2O3(tot):
FeO(tot): Fe2O3: FeO :
MgO : CaO : Na2O :
K2O : 1.45 TiO2 : MnO :
P2O5 : LOI : H2O+ :
H2O- : CO2 : SO3 :
S : Total: Magnesium#:
Comments:
Fe oxide partitions not specified or analyzed.
Laboratory analysis.
Data source is Hole Summary Book.
Results are averages for multiple analyses of the specimen.
ship and at one or more shore laboratories or by different techniques.
Partial analysis.
Magnesium number is atomic ration Mg/(Mg+Fe++), where Fe is total iron.
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